<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title></title>
</head>
<body>
<script type="text/javascript">
	/*
//一维数组
var arr=['你好','a',3000,true];
console.log(arr[2]);

//二维数组
var brr=['你好',['a','b','c'],123];
console.log(brr);
console.log(brr[1][0]);

//三维数组
var crr=['你好',['a','b',['1','2','3'],'c'],123];
console.log(crr);
console.log(crr[1][2][1]);
	*/


var arr=[
	'河北省',[
				'张家口市',['下花园区','周路线','宣化区'],
				'张家口市',['下花园区','周路线','宣化区'],
				'张家口市',['下花园区','周路线','宣化区'], 
			],
	'北京', [
				'张家口市',['下花园区','周路线','宣化区'],
				'张家口市',['下花园区','周路线','宣化区'],
				'张家口市',['下花园区','周路线','宣化区'], 
			]

]
var len=arr.length;
for(var i=0;i<len;i++){
	if(typeof arr[i]=='string'){
		console.log(arr[i]);
	}
}
// console.log(arr);
</script>
</body>
</html>